Combined switch and cut-out.



H. R. SARGENT.

COMBINED SWITCH AND OUT-OUT.

APPLICATION FILED DEG. 1, 1902.

Patented Apr. 27, 1909.

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U rrnn snares HOWARD R. SARGENT, OF SOHENEOTADY, NEW YORK, ASSEGNOR TOGENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

COMBINED SWITCH AND CUT-OUT.

Specification of Letters Patent.

Patented. April 27, 1909.

Application filed December l 1902. Serial No. 133,377.

To all whom it may concern:

' specification.

My invention relates to electric lighting, and especially to seriessystems oflighting such as are employed upon street cars and similarplaces Where relatively high tension electric currents are used, and itsobject is to provide a simple and highly-eiiicient combined switch andcut-out.

My invention will be more readily understood by reference to theaccompanying drawing forming a part of this specification. in which-Figure l is a plan of a combined switch and cut-out with the coverremoved showing one form of my invention; Fig. 2 is a cross section ofthe device taken on a plane indicated by line 2-2 of Fig. 1; Fig. 3 is aplan view of the inner side of the coveryand Fig. i is a longitudinalsection taken on a plane indicated by line i-e of Fig. 1.

As shown-in the drawing the base A. and

the cover B are of porcelain and form an insulating box for the severalelectrical parts of the device. The base A. is a plane rectangular slabpierced byv a number of countersunk screw holes and two plane apertures1 for the passage of the line wires. Upon the upper surface of the base.A and to one side of its center line 1S mounted a snap switch C having atwo-arm blade 3. and in. nne with 1 the switch are twostationarycontacts 4 consisting of U-shaped strips of spring metal andconnected by screws or rivets to bent arms 5 of the punchedmetalsupports (5 and T. The support 6 has its middle portion bent up into aloop 8 and carries a binding screw 9 in an arm 10 extending out. atright angles, and is secured to the base A by two screws 11 extendingthrough the base and engaging threaded holes therein. The support 7 isprovided with a loop 12 corresponding to loop 8 of support 6 and a longarm 13 which extends nearly across the base and e ngages afuse contact,and is secured to the base by two screws 14. I

The fuse D may be of the well known cartridge type, provided withmetallic caps or end pieces 15 to which the fusible member 15 isattached at its respective ends, and

adapted to make contact with metallic U- shaped clips 16 and 17 ofspring metal. The clip 16 is connected to the arm 13 of support 7 bymeans of an offset 18 from the arm which extends between the arms of theclip and is held in engagement therewith by a screw 19 extending throughthe base and engaging a-tapped hole in the offset of arm 13. The clip 17is connected to a metallic strip 20 provided at one end with a bindingscrew 21, and at the other screw 19.

The cover B has two main cavities 22 and 23 in its underside which areadapted to receive the switch and fuse members respectively andeffectually insulate the one from with an otfset 18- and the other bymeans of tliewall or barrier 24 between the cavities. At each end of theswitch cavity 22 is secured a U-shaped clip 25 by means of a screw 26extending through the cover and engaging a nut 27 located between thearrns of (the clip. When the cover is in place these clips 25 engage theloops 8 and 1201? the switch contact supports 6 and 7, and operate" tohold the cover in place. lthe forward end of the cover is provided withtwo grooves 28 and 29 through which the line wires may be led to therespective binding screws 9 and 21, when it is-impracticableorinconvenient to lead the wires through the apertures 1 in the base. Ahole 30 is provided in the cover for the .assage of the stem of theswitch G. T he ower edges of the cover B, with the exception of thegrooves 28 and 29 and a slight groove 31 for the passage of theconnection 13, are in a plane and make close joints with the uppersurfaceof the haseB.

The cover is held in engagement with the base by the clips 25 engagingthe loops 8 and 12, and by the thUHlb-plC of the switch, so that when itis desired to remove the cover to inspect or renew any of the electricalparts of the device. it is only necessary to unscrew the thumb-piece andpull upon the cover-to disengage the-clips 25 from the. loops 8 and 12.

litis to be noted that my deviceis adapted to be opened forinspcctionwithout interference with the electrical connections, that when thecover is in place the connections are "substantially sealed againstdust. that tween the switch contacts and the fuse con- I tacts, and acover of insulating material neving two cavities and holding clipsadapted to engage said loops.

In Witness whereof I have hereunto set my hand this 2&th day ofNovember, 1902.

HOWARD R. SARGENT.

Witnesses:

ALEX. F. M onoNALn, HELEN ORroRn.

